Meflwr13: Cassava Flowering Time QTL and SNP Markers for 304 Progenitors

QTL mapping and SNP validation data for cassava flowering time identify a major regulatory locus (Meflwr13) on chromosome 13. Produced by Adriana Bohorquez Chaux for The Alliance of Bioversity International and CIAT, the collection includes categorical flowering scores for an F2 population and genotypes for 304 breeding progenitors. Observations track flowering progress across five time points from 4 to 9 months after planting.

Use Cases

• Marker-assisted selection (MAS) using validated SNPs C13_889929, C13_634483, and C13_658450
• Predicting flowering onset using the 0-2 categorical scoring scale across five time points (4-9 MAP)
• Analyzing the genetic architecture of the Meflwr13 locus and its interaction with FT and TFL1 genes

Strengths

• High statistical significance with a maximum LOD score of 20.82 for the Meflwr13 locus
• Validation of SNP markers across an independent panel of 304 breeding progenitors
• Longitudinal phenotypic data collected at five distinct time points (4, 6, 7, 8, and 9 MAP)

Limitations

• Phenotypic scoring is limited to a 3-point categorical scale (0-2), lacking continuous measurement precision
• Primary mapping results are derived from a single F2 population (AM1588)
• Geographic scope is restricted to the Americas region

Provenance

Source

The Alliance of Bioversity International and CIAT Dataverse

Collection Method

Quantitative trait locus (QTL) mapping and SNP validation

Freshness

Last updated 2026-03-13.

Geography

Americas